Acc 0.5 sec over one arc min, 3 sec over 20 min; 20 min arc range, 0.2 sec graduation; dot w/ illuminated ring reticle; 2.5 in. Diameter aperture; 20 in. Focal l; 30/150 ft measuring range; 2 degrees base elevation, azimuth adjustment; 115 vac transformer, rheostat, ge 328 lamp light source; gray enamel finish; hardwood case; 9 in. H, 6 in. W, 12.75 in. D
